Fomboni in Spring
In spring (September, October and November), Fomboni sees average daytime highs around 26°C and overnight lows near 25°C, with 51 mm of rain over about 10 wet days across the season. It is the 3rd-warmest season and the 3rd-wettest season.
Over the season highs climb from about 25°C in early September to 27°C by late November. The sky is clear or mostly clear about 79% of the time across spring, and the air most often feels oppressive.
Spring is Fomboni's 2nd-best season to visit on our travel score. Fomboni has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Fomboni's year-round climate.
- Avg daytime high
- 26°C
- 3rd-warmest season
- Avg overnight low
- 25°C
- Rainfall
- 51 mm
- 10 wet days
- Avg wind
- 13 km/h
- Travel score
- 8.3
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Fomboni in Spring
Over the season highs climb from about 25°C in early September to 27°C by late November.
A typical spring day in Fomboni reaches about 26°C and drops to 25°C overnight. The warmest of the three months is November, the coolest September.
How spring really feels in Fomboni
Once humidity and wind are folded in, spring brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
spring sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Fomboni weather by month
How the three spring months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 28° / 27° | 168 | 17.6 | 12.6 | 5.1 |
| Feb | 28° / 27° | 159 | 16.9 | 12.4 | 4.8 |
| Mar | 28° / 27° | 139 | 19.5 | 12.1 | 4.7 |
| Apr | 28° / 27° | 88 | 14.1 | 11.7 | 5.8 |
| May | 27° / 26° | 31 | 6.9 | 11.4 | 7.4 |
| Jun | 26° / 25° | 17 | 4.1 | 11.3 | 8.1 |
| Jul | 25° / 24° | 13 | 3.3 | 11.4 | 8.5 |
| Aug | 25° / 24° | 8 | 2.4 | 11.6 | 8.8 |
| Sep | 25° / 24° | 7 | 2.2 | 11.9 | 8.8 |
| Oct | 26° / 25° | 13 | 3.2 | 12.3 | 8.4 |
| Nov | 27° / 26° | 31 | 4.9 | 12.6 | 7.8 |
| Dec | 28° / 26° | 84 | 13 | 12.7 | 6.1 |
Cloud cover in Spring
The sky is clear or mostly clear about 79% of the time across spring.
Chance of precipitation in Spring
Fomboni gets around 51 mm of rain over 10 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 13 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 48 min in early September to 12 h 42 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 6.7 kWh/m².
Hazard calendar for Fomboni
In spring, Fomboni overlaps its cyclone season. The full year is below, with each hazard's peak months called out.
Fomboni sits in the South Indian Ocean cyclone belt; the season peaks January–March.
Fomboni's rainy season runs December–April, when most of the year's rain falls.
Is spring a good time to visit Fomboni?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is one of the better times to visit Fomboni for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Fomboni in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Fomboni sees daytime highs around 26°C and nights near 25°C. Pack sun protection. Worth having: light clothes. About 10 days see rain.
Sea temperature near Fomboni in Spring
The nearest coast averages about 27°C across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 16 km away) is warmest in March at about 30°C and coldest in August near 26°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 29 | 29 | 30 | 29 | 28 | 27 | 26 | 26 | 26 | 27 | 28 | 29 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Warm | Warm | Warm | Warm | Warm | Warm | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 29 | Tropical |
| Feb | 29 | Tropical |
| Mar | 30 | Tropical |
| Apr | 29 | Tropical |
| May | 28 | Tropical |
| Jun | 27 | Warm |
| Jul | 26 | Warm |
| Aug | 26 | Warm |
| Sep | 26 | Warm |
| Oct | 27 | Warm |
| Nov | 28 | Warm |
| Dec | 29 | Tropical |
UV index in Fomboni in Spring
Clear-sky midday UV across spring averages around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Fomboni peaks around February 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 9 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 14 | 15 | 14 | 12 | 10 | 9 | 9 | 11 | 12 | 13 | 12 | 13 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 15 | Extreme |
| Mar | 14 | Extreme |
| Apr | 12 | Extreme |
| May | 10 | Very high |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 11 | Extreme |
| Sep | 12 | Extreme |
| Oct | 13 | Extreme |
| Nov | 12 | Extreme |
| Dec | 13 | Extreme |
Where is Fomboni?
Fomboni sits at 12.3°S, 43.7°E, 18 m above sea level, in Comoros. The nearest listed city is Moutsamoudou, 73 km away.
Topography around Fomboni
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Fomboni.
Within 3 km, the terrain around Fomboni has significant variations in elevation — a maximum elevation change of 554 m around an average of 100 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 780 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,346 m.
The land around Fomboni is covered by trees (52%) and water (39%) within 3 km, water (75%) and trees (24%) within 16 km, and water (92%) within 80 km.
Comoros travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / E
- 220 V · 50 Hz
- Prices
- ≈ 49% of US
- price level, 2025
- GDP per capita
- $2,056
- 2025
- Happiness
- 3.9 / 10
- World Happiness, 2025
- Road deaths
- 26.6
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Fomboni (-12.2876°, 43.7434°, elevation 18 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.